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View Full Version : Engine detonation 3sgte Apexi power fc



ST205 TRD
01-28-2015, 10:50 AM
I get knock warning from my ECU. The level is between 20-40, but sometimes as high as 65.
I`m running the base map (no dyno)
The base map is for 100 RON and I`m running shell 98 vpower.
I`ve tried to retard the timing a couple of degrees but it doesnt really seem to be reducing the knock. Reducing the boost doesnt really seem to make a difference either.
Engine mods are basic. Race exhaust, air filter, st185 stage 3 turbo.
Could the sensor be picking up something else than actual engine knock?
I cannot hear any noises resembling knock, but then its a loud setup.
Will detonation be easily heard?

ST205 TRD
01-28-2015, 12:32 PM
It doesnt look like my wastegate is regulating the boost. When I reduce the boost in the menu "boost" on my FC commander all it does is cut fuel when 0.25 bar over the setpoint.
Shouldnt the ecu control the wastegate trough the vsv?
If my wastegate is not working properly and allowing too much boost, will this result in knocking?